Borescope plug lockring



FIG. 1 is a front perspective view of a borescope plug including the borescope plug lockring of the claimed design, the broken lines in the drawing illustrating the environmental structure of the borescope plug lockring which is not part of the design sought to be patented;

FIG. 2 is an exploded perspective view of the borescope plug including the borescope plug lockring of FIG. 1, the broken lines in the drawing illustrating the environmental structure of the borescope plug lockring which is not part of the design sought to be patented;

FIG. 3 is a front perspective view of the borescope plug lockring of the disclosure;

FIG. 4 is a front elevational view thereof, the right side elevational view, the left side elevational view and the back elevational view being the same as the front elevational view;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view side view thereof;

FIG. 7 is a front perspective view of a second embodiment of the borescope plug lockring of the disclosure;

FIG. 8 is a front elevational view thereof, the back elevational view being the same as the front elevational view;

FIG. 9 is the right side elevational view thereof, the left side elevational view being the same as the right side elevational view;

FIG. 10 is a top view thereof; and

FIG. 11 is a bottom view thereof;

FIG. 12 is a front perspective view of a third embodiment of the borescope plug lockring of the disclosure;

FIG. 13 is a front elevational view thereof, the right side elevational view, the left side elevational view and the back elevational view being the same as the front elevational view;

FIG. 14 is a top view thereof; and,

FIG. 15 is a bottom view thereof.

The broken lines in the drawings represent the environment for the borescope plug lockring that form no part of the claimed design. 

CLAIM The ornamental design for a borescope plug lockring, as shown and described. 